<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <span id="num">{{num}}</span>
        <button @click="num++">赞！</button>
        <h2>{{name}}，有{{num}}个人点赞</h2>
    </div>

    <script src="../node_modules/vue/dist/vue.js"></script>
    <script>
        let app = new Vue({
            el: "#app",
            data: {
                name: "张三",
                num: 100
            },
            methods: {
                show() {
                    return this.name;
                },
                add() {
                    this.num++;
                }
            },
            beforeCreate() {
                console.log("=============beforeCreate=============");
                console.log("数据模型未加载：", this.name, this.num);
                console.log("方法未加载：", this.show);
                console.log("html模板已加载：", document.getElementById("num"));
                console.log("html模板未渲染：", document.getElementById("num").innerText);
            },
            created() {
                console.log("=============created=============");
                console.log("数据模型已加载：", this.name, this.num);
                console.log("方法已加载：", this.show());
                console.log("html模板已加载：", document.getElementById("num"));
                console.log("html模板未渲染：", document.getElementById("num").innerText);
            },
            beforeMount() {
                console.log("=============beforeMount=============");
                console.log("html模板未渲染：", document.getElementById("num").innerText);
            },
            mounted() {
                console.log("=============mounted=============");
                console.log("html模板已渲染：", document.getElementById("num").innerText);
            },
            beforeUpdate() {
                console.log("=============beforeUpdate=============");
                console.log("数据模型已更新：", this.num);
                console.log("html模板未更新：", document.getElementById("num").innerText);
            },
            updated() {
                console.log("=============updated=============");
                console.log("数据模型已更新：", this.num);
                console.log("html模板已更新：", document.getElementById("num").innerText);
            }
        })
    </script>
</body>
</html>